I'm always looking for neat things to do with the kids and this is something they all loved! Most kids love Legos and what kid doesn't like Jello? Great combination!! Make your jello and pour into the bigger Lego blocks, I think these are called Duplo. I let them help stir the jello and I poured. Kids are always eager to eat things that they help to prepare. This will be there desert today with some cool whip. Great summer snack.....Enjoy!